Wind-gage.



J. LAMANT.

WIND GAGE.

APPLIOATION FILED JULY 5, 1912.

1,060,5463. Patented Apr. 29, 1913.

WWW [6 emu-mm PLANOGRAPH COHWASHINGTON, D. c.

JOSEPH LAMANT, 0F VITRY-LE-FRANQOIS, FRANCE.

WIND-GAGE.

Specification of Letters Patent.

Patented Apr. 29, 1913.

Application filed July 5, 1912. Serial No. 707,874.

T 0 all whom it may concern:

Be it known that I, Josnrrr LAMANT, a citizen of the French Republic,residing at Vitry-le-Francois, Marne, France, have invented certain newand useful Improvements in VVind-Gages, of which the following is aspecification.

This simple apparatus occupying a small space is intended to indicatethe force of the wind and to enable the pilots of aeroplanes, balloons,etc., to be informed at any moment of that force so that they can actaccordingly. It can be used either alone or in combination with acompass-holder indieating an aerial route patented in France under No.425978 on the 13th February The apparatus is shown in the accompanyingdrawing in which Figure 1 shows the apparatus in plan, Fig. 2 in sideelevation and Fig. 3 is a view of the apparatus from the back mounted onits support.

The apparatus comprises a platform 1 carrying a dial 2 divided into 100parts (25 on each side, that is to say, only 50 are shown on thedrawing) a hand 3 adapted to be moved by a movable lever t operated bytwo metal cups 9 to which it is secured. The lever 4: which travelshorizontally on the pivot 5, is provided at its other end with a pin 6passing through a groove 7 in a spring 8 and then through a groove 10 ofthe hand 8 and rotates the said hand on the divided dial'2, thusindicating the pressure of the wind on the metal cups 9.

The working of the apparatus will be readily understood by examining thedrawmg.

five cents each, by addressing the Washington, D. G.

Copies of this patent may be obtained for The spring 8 is a brass blade,the special shape of which is clearly shown in the drawing.

The hand 3 has acurved point which projects over the circumference ofthe dial. Thedivisions of the dial are repeated on the circumference, sothat the aviator is not required to bend over in order to read the dial,but he can see the circumferential markings equally well when he iserect.

The apparatus is supported by an arm provided with a sleeve (Fig. 3)constructed like that of the compass holder hereinbefore referred to, orin any other manner.

hat I claim as my invention and desire to secure by Letters Patent is 1.In an apparatus for indicating the strength of the wind, two metaldisk-like cups, a horizontally movable branch connected thereto, anindicating hand, and a spring to connect the hand to the branch.

2. In an apparatus for indicating the strength of the wind, two metalcups connected together back to back, a lever connected thereto, a frameto which the lever is pivotally connected, a dial on the frame, a needlepivoted over the dial, a spring adapted to return the needle to Zeroposition when displaced, and means to connect the lever to the needlefor the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

VICTOR VOLBART, JEANNE DESCARREAUX.

Commissioner of Patents,

